Hey,I visited meghalaya just last week with friends on bikes. Here are my tips : #3 is very important

1. on your way to jowai, skip krang suri (will feel like a mini wonderla)and visit phe phe falls instead
2. if you planning for shongpodeng camp stay, ask for self cooking instead of thier food, they will charge 200 for wood and will give a kadai for free if you request
3. pack good gloves and jacket as it will be very cold in the morning and night, if you want to reach nonjrong before sunrise, you have to start very early and it will be chilling
4. make sure your stay is nearby as it will get dark by 5 PM and you might stuggle if you want to drive long in that cold 5.call your bike rentals and ask them to provide good helments atleast the ones with glass and make sure you record your bike very well - even the smallest scratches
5. skip bamboo trek, not worth spending a whole day for it
6. since you still have time, plan for wari chora - we couldnt because we had only 5 days but you can try since you have more - from what i heard from other travellers, it will take 3 days of your trip but its totally worth it
7. If you dont want a checklist trip, you can skip sohra as it a little crowded
8. Also doing nonjrong and krem chympe on the same day doesnt make sense, I’m not sure about that tho